Re: [syzbot] [ntfs3?] KASAN: slab-out-of-bounds Read in mi_enum_attr
From: Lizhi Xu
Date: Fri Jul 05 2024 - 09:53:44 EST
On Thu, 4 Jul 2024 15:44:02 +0200, Dmitry Vyukov wrote:
> > index 53629b1f65e9..a435df98c2b1 100644
> > --- a/fs/ntfs3/record.c
> > +++ b/fs/ntfs3/record.c
> > @@ -243,14 +243,14 @@ struct ATTRIB *mi_enum_attr(struct mft_inode *mi, struct ATTRIB *attr)
> > off += asize;
> > }
> >
> > - asize = le32_to_cpu(attr->size);
> > -
> > /* Can we use the first field (attr->type). */
> > if (off + 8 > used) {
> > static_assert(ALIGN(sizeof(enum ATTR_TYPE), 8) == 8);
> > return NULL;
> > }
> >
> > + asize = le32_to_cpu(attr->size);
> > +
> > if (attr->type == ATTR_END) {
> > /* End of enumeration. */
> > return NULL;
>
> Hi Lizhi,
>
> I don't see this fix mailed as a patch. Do you plan to submit it officially?
Hi Dmitry Vyukov,
Here: https://lore.kernel.org/all/20240202033334.1784409-1-lizhi.xu@xxxxxxxxxxxxx
--
Lizhi